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Guanine

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Guanine molecular structure
Molecular structure

The Sigma-Aldrich catalog lists 7 grades and pack sizes of Guanine (CAS 73-40-5). Pick the code you need and request a quote for price and lead time from Klar Chem.

CAS73-40-5
Molecular formulaC5H5N5O
Molecular weight151.13 g/mol
IUPAC name2-amino-1,7-dihydropurin-6-one
Synonyms2-Amino-6-hydroxypurine · 2-Aminohypoxanthine · Guanin · Mearlmaid · Guanine enol · Pearl essence
Safety & Hazards (GHS) Warning
Irritant Irritant
  • H315 Causes skin irritation
  • H319 Causes serious eye irritation
  • H335 May cause respiratory irritation

⚠️ For information only (source: EU CLP harmonised classification and ECHA notifications, via PubChem); not a substitute for the official Safety Data Sheet (SDS).

Catalog codes and grades

Brand Product / grade Code
Sigma GUANINE PHR1243-500MG Request Quote
Sigma GUANINE BIOULTRA G6779-25G
G6779-5G		 Request Quote
Sigma GUANINE, 98% G11950-100G
G11950-10G
G11950-25G		 Request Quote
Sigma GUANINE, UNITED STATES PHARMACOPEIA (USP 1302156-100MG Request Quote

For information only; specifications and availability are confirmed at quotation. Prices are not listed.